达鲁纳维尔的模拟前体向多发性骨髓瘤和CLL中的线粒体代谢
Marisabel Mecca1, Marzia Sichetti1, Enrico La Spina2
1Laboratory of Preclinical and Translational Research, Centro di Riferimento Oncologico della Basilicata (IRCCS-CROB), Rionero in Vulture (PZ), 85028, Italy.
Cancer cell international
|December 23, 2025
概括
两种新型HIV蛋白酶抑制剂前体BupM-NH2和BnpM-NH2通过抑制线粒体呼吸和自细胞,对多发性骨髓瘤 (MM) 和慢性淋巴细胞白血病 (CLL) 细胞表现出显著的细胞毒性. 这些化合物显示出克服血液性恶性瘤中药物耐药性的前景.
科学领域:
- 血液学 血液学 血液学
- 在瘤学瘤学.
- 药理学 药理学是指药理学的学科.
背景情况:
- 多发性骨髓瘤 (MM) 和慢性淋巴细胞白血病 (CLL) 是由于耐药性导致预后不佳的血液性恶性瘤.
- 线粒体代谢受损是MM和CLL耐药性的关键因素.
- 艾滋病毒蛋白酶抑制剂已经显示出克服药物耐药性的潜力.
研究的目的:
- 评估两种HIV蛋白酶抑制剂前体BupM-NH2和BnpM-NH2对MM和CLL细胞的影响.
- 研究它们的细胞毒性和化学敏感性作用的潜在机制.
主要方法:
- 在MM,CLL和外周血液单核细胞 (PBMC) 中使用MTS测定来评估细胞毒性.
- 分析了细胞亡,细胞循环,蛋白质表达 (自,ER压力,呼吸链),细胞代谢活动和线粒体功能.
- 采用了西部涂抹,海马分析仪和流细胞计.
主要成果:
- BupM-NH2和BnpM-NH2显著降低了MM和CLL细胞活力,对PBMC的影响较小.
- 化合物抑制了自和线粒体呼吸,减少了ATP的产生.
- 在新诊断的MM (NDMM) 细胞中,BnpM-NH2显示出显著的细胞毒性,但在复发性/耐药性MM (RRMM) 细胞中没有.
结论:
- BupM-NH2和BnpM-NH2对MM和CLL细胞表现出细胞毒性,主要是通过通过自和线粒体呼吸抑制诱导亡.
- 这些化合物在呼吸链和线粒体中诱导压力,可能重新敏感抗性瘤细胞.
- BupM-NH2和BnpM-NH2作为MM和CLL治疗的新型治疗剂具有前景.
相关概念视频
Targeted Cancer Therapies
8.6K
The targeted cancer therapies, also known as “molecular targeted therapies,” take advantage of the molecular and genetic differences between the cancer cells and the normal cells. It needs a thorough understanding of the cancer cells to develop drugs that can target specific molecular aspects that drive the growth, progression, and spread of cancer cells without affecting the growth and survival of other normal cells in the body.
There are several types of targeted therapies against...
There are several types of targeted therapies against...
8.6K
Combination Therapies and Personalized Medicine
5.8K
Combining two or more treatment methods increases the life span of cancer patients while reducing damage to vital organs or tissue from the overuse of a single treatment. Combination therapy also targets different cancer-inducing pathways, thus reducing the chances of developing resistance to treatment.
The combination of the drug acetazolamide and sulforaphane is a good example of combination therapy to treat cancer. The cells in the interior of a large tumor often die due to the hypoxic and...
The combination of the drug acetazolamide and sulforaphane is a good example of combination therapy to treat cancer. The cells in the interior of a large tumor often die due to the hypoxic and...
5.8K
Mitochondrial Precursor Proteins
3.5K
Mitochondrial precursors are partially unfolded or loosely folded polypeptide chains. Newly synthesized precursors are inhibited from spontaneously folding into their native conformation by the cytosolic chaperones, heat shock proteins 70 (Hsp70), and mitochondrial import stimulation factors (MSFs). Precursors bound to MSFs are guided to the TOM70-TOM37 receptors, while precursors bound to Hsp70 chaperones are targetted to TOM20-TOM22 receptor complexes.
Most of the mitochondrial...
Most of the mitochondrial...
3.5K
Electron Transport Chain: Complex I and II
18.3K
The mitochondrial electron transport chain (ETC) is the main energy generation system in the eukaryotic cells. However, mitochondria also produce cytotoxic reactive oxygen species (ROS) due to the large electron flow during oxidative phosphorylation. While Complex I is one of the primary sources of superoxide radicals, ROS production by Complex II is uncommon and may only be observed in cancer cells with mutated complexes.
ROS generation is regulated and maintained at moderate levels necessary...
ROS generation is regulated and maintained at moderate levels necessary...
18.3K
Subviral Agents
452
Subviral agents are infectious entities that resemble viruses but lack one or more viral components, such as a capsid or essential replication machinery. These agents include viroids, prions, and satellites, each possessing distinct structural and functional characteristics that influence their mode of infection and replication.Viroids are the simplest subviral agents, consisting of circular, single-stranded RNA molecules without a protein coat. They exclusively infect plants, relying entirely...
452
Chemotherapy-Induced Nausea and Vomiting: Dopamine Receptor Antagonists
785
Dopamine receptor antagonists, also known as antipsychotic agents, are critical in managing chemotherapy-induced vomiting. These antiemetic agents block dopamine receptors in the chemoreceptor trigger zone (CTZ), inhibiting signal transmission to the vomiting center. Antipsychotic agents encompass phenothiazines (PTZ), butyrophenones, benzamides, and thienobenzodiazepines (Zyprexa), which are utilized for their antiemetic and sedative properties.
Phenothiazines, such as prochlorperazine...
Phenothiazines, such as prochlorperazine...
785


